Panasonic OmniVision PV-M1326 Service Manual Download

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WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are important for safety. These parts are marked by

in the Schematic

Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer’s specified parts to prevent X-RADIATION, shock, fire or other hazards. Do not modify the original design without
permission of manufacturer.

REMOTE

CONTROL

PART NO.

A/V JACK

FRONT REAR

STEREO

HEAD

MODEL

PV-M1326

—

VSQS1436

PV-M1326W

—

VSQS1437

VV1306

—

VSQS1404

VV1306B

—

VSQS1404

VV1316W

—

VSQS1409

PV-M1346

—

VSQS1440

PV-M1356W

—

VSQS1441

PV-M2036

—

VSQS1440

VV2006

—

VSQS1404

VV2016W

—

VSQS1409

PV-M2046

—

VSQS1443

VV2706

—

VSQS1438

Use the Marks (A, B, ···) shown in the chart below to distinguish
the different models included in this Service Manual.

MODEL

MARK

PV-M1326

PV-M1326W

VV1306

VV1306B

VV1316W

PV-M1346

PV-M1356W

MODEL

MARK

PV-M2036

VV2006

VV2016W

PV-M2046

VV2706

NOT USED

Safety Precautions ....................................................... 1-1
Prevention of ESD to ES Devices ................................ 1-2
X-Radiation ................................................................... 1-3

I. SUMMARY

A. Basic Operations ...................................................... 1-4
B. Helpful Service Notes

and Cautions(please read) ....................................... 1-8

C. Other Service Notes and Cautions ......................... 1-18
D. IC, Transistor and Chip Part Information ................ 1-23

How to read the identification mark
of chip components ................................................ 1-23
How to read the values of the cylindrical
type chip components ............................................ 1-23

II. ADJUSTMENT PROCEDURES

A. Mechanical Adjustment Procedures ......................... 2-1

1-1. Disassembly of Cabinet Parts ........................... 2-1
1-2. Disassembly of Cabinet Parts ........................... 2-5
2. Procedure for Cleaning

Upper Cylinder Unit ............................................. 2-9

3. Adjustment Procedures ....................................... 2-9

B. Service Fixtures and Tools ..................................... 2-29
C. Electrical Adjustment Procedures .......................... 2-30

1. Test Equipment ................................................. 2-30
2. How to Read the Adjustment Procedures ......... 2-30
3. Adjustment Procedures ..................................... 2-31

D. Location of Test Points and Adjustment Points ...... 2-38

III. SCHEMATIC DIAGRAMS

Schematic and C.B.A. Diagram Notes ......................... 3-1
Capstan Motor Drive Schematic Diagram .................... 3-2
Main I (Power Supply/System Control

/Servo) Schematic Diagram ..................................... 3-4

Main II (Signal Process/OSD/Audio/Audio Amp

/TV Y/C Process) / A/V Jack Schematic Diagram .... 3-8

Main I (System Control/Servo

/VCR Plus) Schematic Diagram ............................. 3-12

Main II (Signal Process/OSD/Audio

/TV Y/C Process) Schematic Diagram ................... 3-16

UHF/VHF Tuner/TV Demodulator

Schematic Diagram ................................................ 3-20

Operation l/II Schematic Diagram ............................... 3-30
Head Amp Schematic Diagram .................................. 3-38
TV Stereo Schematic Diagram ................................... 3-43
TV Stereo Amp / A/V Jack Schematic Diagram ......... 3-48
Stereo Amp / TV AVR / Power Amp

/ A/V Jack Schematic Diagram ............................... 3-52

TV Main / CRT Schematic Diagram ........................... 3-56
Interconnection Schematic Diagram ........................... 3-66

IV. CIRCUIT BOARD DIAGRAMS

Power Supply C.B.A. .................................................... 4-1
Capstan Motor Drive C.B.A. ......................................... 4-1
Main (Power Supply/Signal Process/OSD

/Audio/Audio Amp/TV Y/C Process

/System Control/Servo) C.B.A. ............................ 4-2

Main (Signal Process/OSD/Audio/TV Y/C Process

/System Control/Servo/VCR Plus) C.B.A. ................ 4-6

Operation I/II C.B.A. ................................................... 4-10
Head Amp C.B.A. ....................................................... 4-14
TV Stereo Amp C.B.A. ................................................ 4-15
TV Stereo C.B.A. ........................................................ 4-15
Stereo Amp / TV AVR C.B.A. ..................................... 4-16
Power Amp C.B.A. ...................................................... 4-17
Audio/Video Jack C.B.A. ............................................ 4-17
TV Main C.B.A. ........................................................... 4-18
CRT C.B.A. ................................................................. 4-22
Signal Waveform ........................................................ 4-23
Voltage Chart .............................................................. 4-26

V. EXPLODED VIEWS

1. Transport Section ..................................................... 5-1
2. Moving Mechanism Section ..................................... 5-2
3. Cassette Up Mechanism Section ............................. 5-3
4. Chassis Frame Section ............................................ 5-4
5. Packing Parts and Accessories Section ................... 5-8

VI. REPLACEMENT PARTS LIST

1. Mechanical Replacement Parts List ......................... 6-1
2. Electrical Replacement Parts List ............................ 6-4

VII. BLOCK DIAGRAMS

Overall Block Diagram .................................................. 7-1
Power Supply Block Diagram ....................................... 7-2
Video/Normal Audio Block Diagram ............................. 7-9
TV Stereo/MTS/SAP Block Diagram .......................... 7-19
TV Stereo/MTS/SAP/Stereo Amp

/Power Amp Block Diagram ................................... 7-21

System Control Block Diagram ................................... 7-24
Servo Block Diagram .................................................. 7-29
Timing Chart ............................................................... 7-34
TV Y/C Process/OSD/CCV

/TV Main Block Diagram ........................................ 7-37

TV Y/C Process/OSD/CCV

/TV Main/TV AVR Block Diagram .......................... 7-42

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